import CryptoJS from "crypto-js";

/**
 * AES 加密
 * @param word: 需要加密的文本
 * KEY: // 需要前后端保持一致
 * mode: ECB // 需要前后端保持一致
 * pad: Pkcs7 //前端 Pkcs7 对应 后端 Pkcs5
 */
const key = CryptoJS.enc.Utf8.parse("1234123412ABCDEF");
const iv = CryptoJS.enc.Utf8.parse("ABCDEF1234123412");

// 加密
function Encrypt(word) {
  let srcs = CryptoJS.enc.Utf8.parse(word);
  let encrypted = CryptoJS.AES.encrypt(srcs, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7,
  });
  return encrypted.ciphertext.toString().toUpperCase();
}

//解密
function Decrypt(word) {
  let encryptedHexStr = CryptoJS.enc.Hex.parse(word);
  let srcs = CryptoJS.enc.Base64.stringify(encryptedHexStr);
  let decrypt = CryptoJS.AES.decrypt(srcs, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7,
  });
  let decryptedStr = decrypt.toString(CryptoJS.enc.Utf8);
  return decryptedStr.toString();
}

export { Encrypt, Decrypt };
